Answer:
Step-by-step explanation:
Creating identical expressions involves changing quantities in a way that preserves the end values specified in the equation.
For instance, if Lei sold 4 carnations:
In the second equation listed, the expression (8 + 0.25c) was multiplied by 4, then by 0.25, for a total multiplicand of 1.
You can make a third equation through the same method. I'll multiply (8 + 0.25c) by 2, and then multiply that expression by 0.5 to keep the multiplicand unchanged:
If Lei sold 4 carnations:
0.5 * (16 + 2) = 9
This equation represents the same quantities as the other equations.
Answer:
100x
Step-by-step explanation:
140 x 100 = 14,000
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Formula
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Area of circle = πr²
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Find Radius
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200.96 = πr²
r² = 200.96 ÷ π
r² = 63.97
r = √63.97
r = 8 km (nearest hundredth)
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Formula
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Circumference = πD
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Find Diameter
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Diameter = Radius x 2
Diameter = 8 x 2
Diameter = 16 km
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Find Circumference
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Circumference = πD
Circumference = π (16)
Circumference = 25.13 km
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Answer: Circumference = 25.13km
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ΔABO is a right triangle with AB⊥BO. The radius of the circle is BO. The Pythagorean theorem applies.
AO² = AB² + BO²
13² = 5² + r²
169 -25 = r²
r = √144 = 12
The radius (r) is 12.
(4/5) / (7/15) =
4/5 * 15/7 =
60/35 reduces to 12/7...so ratio is 12:7 or 1 5/7